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https://github.com/sqlmapproject/sqlmap.git
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updated third-party magic library
This commit is contained in:
Bernardo Damele
parent
9e2f0131b9
commit
aeda67e945
168
thirdparty/magic/magic.py
vendored
168
thirdparty/magic/magic.py
vendored
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@ -1,13 +1,23 @@
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#!/usr/bin/env python
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"""
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magic is a wrapper around the libmagic file identification library.
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See README for more information.
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Usage:
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>>> import magic
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>>> magic.from_file("testdata/test.pdf")
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'PDF document, version 1.2'
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>>> magic.from_file("testdata/test.pdf", mime=True)
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'application/pdf'
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>>> magic.from_buffer(open("testdata/test.pdf").read(1024))
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'PDF document, version 1.2'
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>>>
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"""
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Adam Hupp <adam@hupp.org>
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Reference: http://hupp.org/adam/hg/python-magic
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License: PSF (http://www.python.org/psf/license/)
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"""
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import sys
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import os.path
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import ctypes
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import ctypes.util
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@ -22,22 +32,26 @@ class Magic:
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"""
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def __init__(self, mime=False, magic_file=None):
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def __init__(self, mime=False, magic_file=None, mime_encoding=False):
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"""
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Create a new libmagic wrapper.
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mime - if True, mimetypes are returned instead of textual descriptions
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mime_encoding - if True, codec is returned
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magic_file - use a mime database other than the system default
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"""
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flags = MAGIC_NONE
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if mime:
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flags |= MAGIC_MIME
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elif mime_encoding:
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flags |= MAGIC_MIME_ENCODING
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self.cookie = magic_open(flags)
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magic_load(self.cookie, magic_file)
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def from_buffer(self, buf):
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"""
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Identify the contents of `buf`
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@ -56,10 +70,10 @@ class Magic:
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return magic_file(self.cookie, filename)
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def __del__(self):
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try:
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# during shutdown magic_close may have been cleared already
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if self.cookie and magic_close:
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magic_close(self.cookie)
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except Exception, _:
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pass
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self.cookie = None
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_magic_mime = None
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_magic = None
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@ -90,66 +104,102 @@ def from_buffer(buffer, mime=False):
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m = _get_magic_type(mime)
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return m.from_buffer(buffer)
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try:
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libmagic = ctypes.CDLL(ctypes.util.find_library('magic'))
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magic_t = ctypes.c_void_p
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def errorcheck(result, func, args):
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err = magic_error(args[0])
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if err is not None:
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raise MagicException(err)
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else:
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return result
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magic_open = libmagic.magic_open
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magic_open.restype = magic_t
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magic_open.argtypes = [c_int]
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libmagic = None
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# Let's try to find magic or magic1
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dll = ctypes.util.find_library('magic') or ctypes.util.find_library('magic1')
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magic_close = libmagic.magic_close
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magic_close.restype = None
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magic_close.argtypes = [magic_t]
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magic_close.errcheck = errorcheck
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# This is necessary because find_library returns None if it doesn't find the library
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if dll:
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libmagic = ctypes.CDLL(dll)
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magic_error = libmagic.magic_error
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magic_error.restype = c_char_p
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magic_error.argtypes = [magic_t]
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if not libmagic or not libmagic._name:
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import sys
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platform_to_lib = {'darwin': ['/opt/local/lib/libmagic.dylib',
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'/usr/local/lib/libmagic.dylib',
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'/usr/local/Cellar/libmagic/5.10/lib/libmagic.dylib'],
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'win32': ['magic1.dll']}
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for dll in platform_to_lib.get(sys.platform, []):
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try:
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libmagic = ctypes.CDLL(dll)
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except OSError:
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pass
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magic_errno = libmagic.magic_errno
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magic_errno.restype = c_int
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magic_errno.argtypes = [magic_t]
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if not libmagic or not libmagic._name:
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# It is better to raise an ImportError since we are importing magic module
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raise ImportError('failed to find libmagic. Check your installation')
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magic_file = libmagic.magic_file
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magic_file.restype = c_char_p
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magic_file.argtypes = [magic_t, c_char_p]
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magic_file.errcheck = errorcheck
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magic_t = ctypes.c_void_p
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_magic_buffer = libmagic.magic_buffer
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_magic_buffer.restype = c_char_p
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_magic_buffer.argtypes = [magic_t, c_void_p, c_size_t]
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_magic_buffer.errcheck = errorcheck
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def errorcheck(result, func, args):
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err = magic_error(args[0])
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if err is not None:
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raise MagicException(err)
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else:
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return result
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def magic_buffer(cookie, buf):
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return _magic_buffer(cookie, buf, len(buf))
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def coerce_filename(filename):
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if filename is None:
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return None
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return filename.encode(sys.getfilesystemencoding())
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magic_load = libmagic.magic_load
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magic_load.restype = c_int
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magic_load.argtypes = [magic_t, c_char_p]
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magic_load.errcheck = errorcheck
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magic_open = libmagic.magic_open
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magic_open.restype = magic_t
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magic_open.argtypes = [c_int]
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magic_setflags = libmagic.magic_setflags
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magic_setflags.restype = c_int
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magic_setflags.argtypes = [magic_t, c_int]
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magic_close = libmagic.magic_close
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magic_close.restype = None
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magic_close.argtypes = [magic_t]
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magic_error = libmagic.magic_error
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magic_error.restype = c_char_p
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magic_error.argtypes = [magic_t]
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magic_errno = libmagic.magic_errno
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magic_errno.restype = c_int
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magic_errno.argtypes = [magic_t]
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_magic_file = libmagic.magic_file
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_magic_file.restype = c_char_p
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_magic_file.argtypes = [magic_t, c_char_p]
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_magic_file.errcheck = errorcheck
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def magic_file(cookie, filename):
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return _magic_file(cookie, coerce_filename(filename))
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_magic_buffer = libmagic.magic_buffer
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_magic_buffer.restype = c_char_p
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_magic_buffer.argtypes = [magic_t, c_void_p, c_size_t]
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_magic_buffer.errcheck = errorcheck
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def magic_buffer(cookie, buf):
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return _magic_buffer(cookie, buf, len(buf))
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_magic_load = libmagic.magic_load
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_magic_load.restype = c_int
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_magic_load.argtypes = [magic_t, c_char_p]
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_magic_load.errcheck = errorcheck
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def magic_load(cookie, filename):
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return _magic_load(cookie, coerce_filename(filename))
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magic_setflags = libmagic.magic_setflags
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magic_setflags.restype = c_int
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magic_setflags.argtypes = [magic_t, c_int]
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magic_check = libmagic.magic_check
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magic_check.restype = c_int
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magic_check.argtypes = [magic_t, c_char_p]
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magic_compile = libmagic.magic_compile
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magic_compile.restype = c_int
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magic_compile.argtypes = [magic_t, c_char_p]
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magic_check = libmagic.magic_check
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magic_check.restype = c_int
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magic_check.argtypes = [magic_t, c_char_p]
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magic_compile = libmagic.magic_compile
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magic_compile.restype = c_int
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magic_compile.argtypes = [magic_t, c_char_p]
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except:
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pass
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MAGIC_NONE = 0x000000 # No flags
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@ -163,6 +213,8 @@ MAGIC_DEVICES = 0x000008 # Look at the contents of devices
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MAGIC_MIME = 0x000010 # Return a mime string
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MAGIC_MIME_ENCODING = 0x000400 # Return the MIME encoding
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MAGIC_CONTINUE = 0x000020 # Return all matches
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MAGIC_CHECK = 0x000040 # Print warnings to stderr
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